This deal has ended.
Paypal has just kicked off a new promotion: spend $100 at many top online retailers, pay via a Paypal account and automatically get 20% cash back, up to $50, by 1/31/08. Eligible stores include Barnes & Noble, Blue Nile, Dell, Eastbay, eBags, eToys, HP Shopping, Newegg, Overstock.com, Ritz Camera, Sierra Trading Post, Sky Mall, SmartBargains and Toys R' Us. See more details at Overstock. Word is that this is capped and may not last long so consider acting quickly.